Bicycle-repair jack.



'No. 653,5l9. Patented July 10, 1900.

" m. A; MASTERS.

BICYCLE REPAIR J'ACK.

(Application filed 4,; 1899;)

2 Sheets-Sheet (No Model.)

WITNESSES ATTORNEYS m: nonms vnzns to. Pnonmu'rmi wAsmNuToN, n. c,

Ptentad Jul In, I900.

M. A. MASTERS. BICYCLE REPAIR JACK.

(Application filed Aug. 4, 1899.)

2 Sheeta$het 2.

(No Model.)

W/ TNE SSE S ATTORNEYS U rTEn STATES.

PATENT OFF CE.

MARSHALL ALBERT MASTERS, OF MONTROSE, COLORADO;

BICYCLE-REPAIR JACK.

SPECIFIGATION'formingpart of Letters Patent No. 653,519, dated July 10, 1900. Application filed August fl, 1899. Serial No. 726,141. (No model.)

To all whmn it may-concern.-

Be itknown that LMARSHALL ALBERT MAS- TERs, of Montrose, in the county of Montrose and State of Colorado, have invented a new and Improved Bicycle-Repair Jack, of which the following is a full, clear, and. exact description.

My invention relates to an improvement in bicycle-repair jacks or devices designed to hold a bicycle in convenient positions for work while assembling or repairing the same.

My invention comprises the novel features which will be hereinafter described and claimed.

Reference is tobe had to the accompanying drawings,'forming a part of this specification, in which similar characters of reference indicate corresponding'p'arts in all the views.

Figure l is'a perspective view of my device, showing a bicycle in place thereon. Fig. 2 is a side elevation and partialsection of the upper end ofthe standard, the horizontal arm which swings thereon, and the shelves which hold the tools. Fig. 3 is a vertical section through the outer ends of the swinging arm, the head, and the cross-bar carried thereby. Fig. 4 is 'a top plan view of the parts shown in Fig. 3. Fig. 5 is a sectional plan taken upon the line 5 f Fig. 2. Fig. 6 is an inverted sectional plan taken upon the line 6 6 in'Fig. 2. Fig. 7 isafront elevation of the cross-bar and I the clamps carried thereby which engage and hold the bicycle-frame. Fig. 8 is a top plan view of one end of said cross-bar, showing one of the clamps and the adjustable fingers which engage the front wheel of the bicycle. Fig. 9 is a sectional plan of the other end of the cross-bar, the clamp and its securing means being shown mainly in section. Fig. 10 is a section taken upon the line 1O 10 of Fig. 9.

Fig. 1]; is a front elevation of one end of thecross-bar, showing the fingers which engage the front bicycle-wheel. Fig. 12 is a bottom plan view ofone of the shelves for holding tools, the standard being shown in section. Fig. 13 is an end view of the post e, showing the pin on the knob of the bolt H in the slot of the said post; and Fig. 14 is a section looking outward, taken just back of the washer between the cross-bar and its clamping-nut.

In repairing and assembling bicycles it is very convenient to have some means for holding the bicycle by which it may be adjusted to any desired position. My present inven tion is designed to conveniently secure these results.

The device is mounted upon a standard A, which may be of any convenient design and construction. This standard is herein shown as a hollow tapering post A, having a flaring base which is secured to the floor; but it may be designed in any other desired form. To the upper end of this standard is pivotally secured a horizontally-extending arm 13, said arm being pivoted to the standard by a ver= tical pivot, so that it may swing in a horizontal plane and extend in any direction from the standard. The connection between the arm and the standard is provided with locking means by which the arm may be locked in any one of various positions, so that the arm is for the time a rigid portion of the standard. The preferred means for securing this result are shown in Figs. 2, 5, and 6.

The upper end of the standard is provided with a circular boss'or pivot a and a second pivot a of much smaller diameter and com centric with the portion a. The arm B has a flange 19 upon its lower end, through which pass screws b securing to the lower end thereof a bonnet or cap I), said bonnet or cap being provided with a central hole adapted to snugly fit over the pivot 00' of the standard and also with a flange 1), adapted to surround the larger pivot portion a of the standard.

The flange b is provided with a series of inwardly-facing notches 6 adapted to receive the outer end J of a locking-block J. Said locking-block is mounted to slide in a radial slot J formed in the upper end of the standard A. The block J is normally held proj ected by means of a spiral spring J which is placed back of the inner end thereof.

The block J has a portion J at the lower edge thereof projecting beyond-the'part J, which enters the notches b in the'flange b. This portion J 2 of the block is adapted to be engaged by a cam surface or incline 1 upon the inner edge of a flange 1 forming a part of the annular ring or wheel I. This wheel surrounds the upper portion of the standard A, the flange I thereof resting upon a shoulder a upon the upper end of the standard.

The flange I lies between the shoulder a and the flange b. The cam-incline I terminates at each end in recesses I and 1 which are adapted to engage the end J of the block J, so as to prevent its sliding in either direction unless the wheel is positively engaged and turned.

In the position shown in Fig. 5 the block J is projected so as to lock the arm to the standard. If the wheel, as shown in Fig. 5, be

given a right-handed rotation or turned in the direction of the arrow shown in said figure, the cam-incline I will by engaging the end J of the block force the block inward until the end J rests within the notch I at the opposite end of the incline. This will have moved the block inward a sufficient distance to free the arm B and permit'it to swing upon the standard. The arm is secured upon the standard A by means of a washer a which overlaps the upper edge of the bonnet b and which is secured to the standard by means of a bolt 0.

The outer end of the arm B terminates in a vertically-disposed circular ear or flange B, which is provided with a transverse axial hole adapted to receive a pivot-pin B, upon which the head E is mounted to swing. This car or circular flange B is provided with holes B in its periphery adapted to receive a lockingbolt H, which slides within the head E. The head E is provided with two circular flanges or ears E, adapted to embrace the flange B and having central holes which receive the pivot pin or bolt B The head is provided with one member E of a friction-clutch, the other member F being supported upon the crossbar D, to which the bicycle is directly secured. The head is also provided with a central post 6, forming a pivot upon which the crossbar D turns. This post is threaded at its outer end and receives a hand-wheel 0 which is threaded to screw thereon and by means of which the friction-clutch may be tightened when desired. The threaded section of this post is cut off upon one side, forming a flat place, as shown in Fig. 14:, and a washer a having a D-shaped hole, is placed between the cross-bar D and the clamping nut or wheel 6 thus preventing the turning of the cross-bar upon its pivot from loosening the nut e and the friction device. The post 6 is also provided with a central hole 6, which receives the locking-bolt H.

The locking-bolt H is normally held inward or in locking position by means of a spiral spring H, which surrounds the same within the hole 6. The outer end of the lockingbolt is provided with a knob or handle 71, by means of which the bolt may be withdrawn when desirable. The knob It has a pin it projecting inward from its inner surface and adapted to either enter a slot or hole 71 in the outer end of the post 6 or to bear against the outer surface of said post, as desired. When the pin lies within the slot 7L2, the lockingbolt is in position to enter one of the holes B in the flange B. Vhen it bears against the outer surface of the post, the locking-bolt will be held withdrawn, so that it cannot enter any one of the holes B and the head is thus free to swing upon its pivot-pins. By this means the bicycle maybe adjusted so as to be held vertically, horizontally, or at an angle between. The mechanism as herein shown is adapted to hold the Wheel either vertically or horizontally above or below the arm B, or at an angle of forty-five degrees with the vertical at either side thereof. The number of different positions in which it is possible to place the wheel will depend upon the number of holes formed in the flange B. If it were desired to be able to hold the wheel in any position between the limits, this might be accomplished bysubstituting an ordinary set-screw for the locking-bolt II or by using some other form of securing device. This, however, is not deemed necessary, as the positions provided for will ordinarily be found sufficient.

By means of the friction-clutch device by which the cross-bar D is secured to the head E the cross-bar may be adjusted in any angular position upon its pivot. The cross-bar D is provided with two clamps located one at each end thereof and adapted to engage the bicycle-frame. A base-block K is provided with a central hole adapted to receive a bolt L, which passes through the arm D, and is provided with a hand-wheel or clampingnut L which screws upon a threaded section L of the bolt projecting from the back side of the bar D. The section L of this bolt, which passes through the slot d in one end of the cross-bar D, is flattened upon opposite sides, so as to prevent the turning of the bolt in said slot. The head of the bolt is provided with a notch L within which is placed a pin L secured upon the base K. This provides for a slight turning of the clamp and for lim iting the same in amount. From the baseblock K extends an arm K, which is provided at its outer end with a segment K of a cylinder of such size as to conveniently embrace the bicycle-tube. At the point M at the opposite side of the block K from that to which the arm K is attached is pivoted an arm M, which in many respects is similar to the arm K. This arm is provided at its outer end with a segment m of a cylinder adapted to coact with the segment K to embrace and hold the bicycle-frame. Both of these segments are provided with a lining k, of leather or similar material, which comes in actual contact with the bicycle-frame and which prevents marring of the enamel or paint on the frame. This lining is held in place by being forced into a recess which is formed in the inner faces of these segments K and m. The flanges surrounding the edges of these recesses serve to hold the lining in place and prevent it from dropping out. By this means the use of glue or cement to hold the lining in place is avoided.

The arm M is provided with a longitudinally-extending slot M adapted to receive a bar or bolt N, said bolt being pivoted by one end to the opposite fixed arm K, as shown at N in Fig. 9. Between the two arms and about the bolt N is placed a spiral spring N which acts upon the swinging arm M to separate it from the fixed arm K. At the outer end of the slot M in said arm is aboss M which is provided wit-h a circular recess M The outer end of the rod N is threaded and has a hand-nut or clampingwheel N screwed thereon, the inner surface of this nut or wheel being provided with a circular projection N adapted to fit within the recess M of the boss M In placing the bicycle in the clamp the clamping nut or wheel N is placed in position so that its end rests in the depression M and turned downward upon the bolt until the tube is securely held. \Vhen it is desired to free the bicycle from the clamp, it is only necessary to turn the nut or wheel N backward one or two turns, when the bolt may be swung backward in the slot M so as to free the clamp and allow the bicycle-tube to be readily removed. This construction obviates the necessity of entirely releasing the tube by unscrewing the nut and makes the process of securing in and removing the bicycle from the clamp much shorter than it would otherwise be.

In Fig. 8 the position of the swinging arm of the clamp when the bicycle is secured therein is shown by dotted lines. One end of the cross-bar D has a slot (1, accommodating the bolt L, by which the clamp is secured to the bar. This permits of the adjustment of the clamps toward and from each other to accommodate them forholding wheels havingframes of different sizes. It is not necessary that the other clamp should be adjusted in the same manner, and its clamping-bolt is therefore passed through a hole 01*, which is of non-circular section, being square, as shown in Fig. 11, the bolt being similarly formed, so that it will not turn within the hole. As it is not necessary to adj ust this clamp along the crossbar, the clamping wheel or nut L is replaced by an ordinary nut L as shown in Fig. 8. This end of the cross-bar has an extension D, which projects downward at a slight angle and which is provided with a slot (1. In this slot is placed a clamping-bolt 0 which is provided with a hand wheel or nut 0 similar to that used for securing the clamp K. Upon this nut is pivoted an arm or plate 0, which has an arm 0 projecting therefrom at right angles and at right angles to the cross-bar D. The arm 0 has fingers O projecting therefrom parallel with the cross-bar D and in such position and at such a distance from each other that they will embrace the rim of the front wheel of a bicycle which is held by the clamps upon the cross-bar D. These fingers may be swung downward when the bicycle is being placed in position on the device by loosening the clamping nutor wheel 0 When the bicycle has been placed in position upon the cross-bar D, the fingers O are swung outward,so as to embrace the rim of the wheel, as shown in Fig. 1. This prevents the front Wheel and the fork of the bicycle from swinging about.

The standard A is provided with means for supporting shelves thereon, which are adapted to hold tools and parts of the bicycle while the same is being operated upon. These shelves consist of trays O, which are secured upon brackets 0 said brackets being secured to semicircular clamping-bars O, which surround the standard, forming pivots by which the trays or shelves may be swunginto any desired position. For holding these trays or shelves at the same elevation collars A, A and A are provided upon the standard, said collars being placed, respectively, below and over the trays or shelves and between the same. These shelves or trays form convenient receptacles for the tools used for the work upon the bicycle and for any part of the bi cycle which may be removed.

The position of the bicycle shown in Fig. 1 is only one of many positions in which the bicycle may be placed. By means of the pivot and the friction-clutch device by which the cross-bar D is supported the bicycle and the cross-bar may be tn rned upon its central pivot and held in any desired position. By means of the pivot-bolt B by which the head E is supported, the bicycle may be swung upward or downward and held either horizontally above or below the arm or at an angle of fortyfive degrees at either side of the vertical. The arm B may also be swung into any position desired, so that a bicycle supported upon this device may be quickly placed in any position desired and the parts of the device locked so as to hold the bicycle securely in this position.

Having thus described my invention, I claim as new and desire to secure by Letters Patent-- 1. A bicycle-repair j ack,comprisinga standard, an arm swiveled thereto and projecting horizontally, a cross-bar secured to the outer end of said arm by a fixed and a swinging pivot which are at right angles to each other, the fixed pivot being horizontal and supported transversely in the arm, pivot clamping or locking means, and bicycle-holding clamps upon the cross-bar, substantially as described.

2. A bicycle-repair jack,comprising a standard, an arm swiveled thereto and projecting horizontally, a cross-bar secured to the outer end of said arm by pivots permitting it to swing in a vertical plane coincident with the arm, and the other in planes perpendicular to said plane,pivot clamping or locking means, and bicycle-holding clamps upon the crossbar adjustable in their various angles, substantially as described.

3. Abicycle-repairjack,comprisingastandard, an arm mounted on the standard to swing in a horizontal plane, an adjustable pivot mounted on the free end of the arm to swing in a vertical plane, a cross-bar adjustably mounted on the pivot,and an adjustable clamp at each end of the cross-bar, substantially as described. I

4. Abicycle-repairjack,comprisingastandard, an arm mounted on the standard to swing in a horizontal plane, an adjustable pivot mounted on the end of the arm to swingin a vertical plane, a cross-bar adjustably mounted on the pivot, and a clamp on each end of the cross-bar, said clamps being adjustable toward and from each other and at different angles to the cross-bar, substantially as described.

5. A bicycle-repair jack, having a crossbar provided with a hole in one end and a slot in the other, two clamps adapted to engage the wheel-frame, and securing-bolts passing through said clamps and respectively through the hole and slot of the crossbar, whereby the clamps may be adjusted both in separation and in relative angle, substantially as described.

6. A bicycle repair jack, having a crossbar provided with a hole in one end and a slot in the other, two clamps adapted to engage the wheel-frame, and securing-bolts passing through said clamps and respectively through the hole and slot of the cross-bar, whereby the clamps may be adjusted both in separation and in relative angle, the bolts being held against turning in the crossbar and the bolt-heads and clamps having one a notch and the other a pin engaging said notch and limiting the turning of the clamps on the bolts, substantially as described.

7. A bicycle-repair jack, having a crossbar provided with a hole in one end and a slot in the other, a double pivot-support therefor permitting adjustment in the plane of the bar and in a plane perpendicular to the bar, two clamps adapted to engage the wheelframe, and securing-bolts passing through said clamps and respectively through the hole and slot of the cross-bar, whereby the clamps may be adjusted both in separation and in relative angle, substantially as described.

8. A clamp for holding a bicycle-frame, comprising a fixed arm having a tube-receiving cavity, an arm pivoted thereto and having a similar tube-receiving cavity, the pivoted arm having a slot therein extending from the pivot end outwardly and terminating short of the outer end of said arm, a nut-receiving ledge or boss at the outer end of said slot, a threaded rod pivoted to the fixed arm and passing through the slot in the swinging arm, and a nut on said rod adapted to bear upon said ledge or boss, substantially as described.

9. A clamp for holding a bicycle-frame, comprisinga fixed arm having a tube-receiving cavity therein, a pivoted arm having a similar tube-receiving cavity, and a slot extending longitudinally thereof and having closed ends, a nut-receiving ledge or boss at the outer end of said slot having a nut-receiving cavity, a threaded rod pivoted at one end to the fixed arm and passing through the slot in the swinging arm, and a nut on said rod adapted to bear upon said ledge or boss and having a rounded or coned under surface adapted to enter the cavity in the boss, substantially as described.

10. A clamp for holding a bicycle-frame, comprising a fixed arm having a tube-receiving cavity, a pivoted and slotted arm having a similar tube-receiving cavity, a rod pivoted upon one arm and extending through the slot of the other arm, said rod having a hand wheel or nut screwing thereon, and a boss or ledge upon the other arm adapted to be en= gaged by said hand wheel or nut, substantially as described.

11. A bicycle-repair jack, having a crossbar, a tube-receiving clamp at each end thereof, and a fork pivoted upon one end of said bar and adapted to embrace the front wheel of a bicycle to prevent the bicycle-fork turning in its head,substantiallyas described.

12. A bicycle-repair jack, having a crossbar, a tube-receiving clam'p at each end thereof, a slotted extension of the cross-bar beyond the clamp at one end, a fork having a pivot passing through said slot and adapted to be swung thereon to embrace the rim of the bicycle-wheel when the bicycle is supported in the clamps, and a clamping wheel or nut screwing upon said pivot, substantially as described.

13. A bicycle-repair jack, comprising a bar having clamps thereon adapted to engage the bicycle-frame to'hold it, a standard having a horizontally-projecting arm,a transverse horizontal pivot connecting the cross-bar to the end of said arm, whereby the cross-bar may be swung under or over said arm, and means for locking the cross-bar in its various positions, substantially as described.

14. A bicycle-repair jack, comprising a bar having clamps thereon adapted to engage the bicycle-frame to hold it, a standard having a horizontally-projecting arm, a head pivoted to the outer end of said arm by a transverse horizontal pivot, means for securingsaidhead in various positions, a cross-bar support, a pivot carried by said head and perpendicular to its pivot-support, and means for clamping the cross-bar upon its pivot, substantially as described.

15. A bicycle-repair jack, comprising a bar having clamps thereon adapted to engage the bicycle-frame to hold it, a standard having a horizontally projecting arm mounted to swing thereon upon a vertical pivot, means for clamping said pivot, a transverse horizontal pivot upon the outer end of said arm and connecting the cross-bar thereto, whereby the cross-bar may be swung over or under said arm, and means for locking the cross-bar in various positions, substantially as described.

16. A bicycle repair jack, comprising a cross-bar having clamps thereon adapted to engage the bicycle-frame to hold it, a standard havinga horizontally-proj ecting arm mounted to swing thereon upon a vertical pivot, means for clamping said arm in place, a head pivoted to the outer end of said arm by a transverse horizontal pivot, means for securing said head in various positions, a cross-barsupporting pivot carried by said head and perpendicular to its pivot, and means for clamping the cross-bar upon its pivot, substantially as described.

17. A bicycle-repair jack, comprising abar having clamps thereon adapted to engage the bicycle-frame to hold it, a standard having a horizontally-projecting arm provided with a vertically-disposed pivot ear or flange at its outer end provided with an axial pivot, and locking holes disposed about its center, a head having ears embracing the ear upon the arm and turning upon its pivot, a locking bolt or pin in the head adapted to engage the holes in the ear, a crossbar-supporting pivot carried by the head and perpendicularly to its pivot, and means for securing the crossbar upon its pivot, substantially as described.

18. Abicycle-repair jack, comprising abar having clamps thereon adapted to engage the bicycle-frame to hold it, a standard having a horizontally-projecting arm having a vertically-disposed pivot ear or flange at its outer end provided with an axial pivot and locking-holes disposed about its center, a head having ears embracing the ear upon the arm and turning upon its pivot, a locking bolt or pin in the head adapted to engage the holes in the ear, a cross-bar-supporting pivot carried by the head and perpendicularly to its pivot, a friction-clutch having one half thereof on the head and the otherhalf on the crossbar and surrounding the cross-bar-supporting pivot, and a clamping nut or Wheel threaded upon the cross-bar supportin g pivot, whereby the friction-clutch may be secured when desired, substantially as described.

19. A bicycle-repair jack, comprising a bar having clamps thereon adapted to engage the bicycle-frame to hold it, a standard having a horizontally-projecting arm terminating in a vertically-disposed circular ear or flange having an axial hole and locking-holes in its periphery, a head having two ears embracing said flange and turning on said pivot, said head having a pivot-pin perpendicular to its supporting-pivot and provided with an axial hole adapted to receive alocking-pin, a springheld locking-pin in said hole adapted to engage the holes in the periphery of the flange on the arm and having an external knob or handle, a friction-clutch surrounding the pivot-pin carried by the head, one half of the clutch being carried by the head and the other half by the cross-bar, and. a clamping wheel or nut screwing upon the pivot-pin carried by the head and clamping the parts of the clutch together, substantially as described.

20. A bicycle repair jack, comprising a standard and a horizontal arm mounted to turn thereon upon a vertical pivot, the standard having a radial notch adapted to receive a locking block or pin, a spring-held block or pin in said recess, the arm having a bonnet or cap provided with an internally notched or recessed flange surroundinga part of the locking block or pin, and a wheel or ring mounted to turn upon the standard and having an inclined or cam surface adapted to engage a part of the locking block or pin to force it inward to release the arm when turned in one direction, substantially as described.

21. A bicycle repair jack, comprising a standard, and a horizontal arm mounted to turn thereon in a horizontal plane and provided at its outer end with means for holding a bicycle, the standard having a springheld locking-block and the arm a flange provided with notches engaged by said block to lock the arm, a wheel or ring jourualed on the standard and having an internally-facing incline or cam surface adapted when the wheel is turned to engage the locking-block to press it inward and free the arm, said camincline terminating in notches adapted to re' ceive the block, whereby the wheel is held from turning backward, substantially as described.

MARSHALL ALBERT MASTERS.

Witnesses:

W. A. THOMAS, W. H. WRIGHT. 

